Information Technology Reference
In-Depth Information
Repeat Steps 1 through 4 on router R2 to remove any startup configuration file that might
be present.
Step 5.
Task 3: Perform Basic Configuration of Router R1
Establish a HyperTerminal session to router R1.
Step 1.
Enter privileged EXEC mode.
Step 2.
Router>
enable
Router#
Enter global configuration mode.
Step 3.
Router#
configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Configure the router name as R1.
Step 4.
Enter the command
hostname R1
at the prompt:
Router(config)#
hostname R1
R1(config)#
Disable DNS lookup.
Step 5.
Disable DNS lookup with the
no ip domain-lookup
command:
R1(config)#
no ip domain-lookup
R1(config)#
Why would you want to disable DNS lookup in a lab environment?
So that the router does not attempt to look up a DNS entry for a name that is really only a
typing error.
What would happen if you disabled DNS lookup in a production environment?
A router would not be able to resolve names, causing potential problems when the router
needs an IP address to address a packet.
Configure the EXEC mode password.
Step 6.
Configure the EXEC mode password using the
enable secret
password
command. Use
class
for the
password
:
R1(config)#
enable secret class
R1(config)#
Why is it not necessary to use the
enable password
password
command?
Although both passwords are listed in the configuration, the
enable secret
command over-
rides the
enable password
command.
